How do I determine array size in a formula node

I am feeding an array into a formula node to perform an operation on. However the size of the array can be an arbitrary size. How can I determine its size to use for iterating through a for loop?
I suppose that I could add another input that is fed with the array size from the array palate but I would like to know if it can be done inside the formula node itself.

Your own advice is the only and best one.
greetings from the Netherlands

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How Can I Determine the Size of the 'My Documents' Folder for every user on a local machine using VBScript?

Hello,
I am at my wits end into this. Either I am doing it the wrong way or it is not possible.
Let me explain. I need a vb script for the following scenario:
1. The script is to run on multiple Windows 7 machines (32-Bit & 64-Bit alike).
2. These are shared workstation i.e. different users login to these machines from time to time.
3. The objective of this script is to traverse through each User Profile folder and get the size of the 'My Documents' folder within each User Profile folder. This information is to be written to a
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4. This script would be pushed to all workstations from SCCM. It would be configured to execute with
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I tried the script detailed at:
http://blogs.technet.com/b/heyscriptingguy/archive/2005/03/31/how-can-i-determine-the-size-of-the-my-documents-folder.aspx
Const MY_DOCUMENTS = &H5&
Set objFSO = CreateObject("Scripting.FileSystemObject")
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I then tried the script at:
http://www.experts-exchange.com/Programming/Languages/Visual_Basic/VB_Script/Q_27869829.html
This script returns the correct value but only for the current logged-on user.
Const blnShowErrors = False
' Set up filesystem object for usage
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objShell = CreateObject("WScript.Shell")
' Display desired folder sizes
Wscript.Echo "MyDocuments : " & FormatSize(FindFiles(objFSO.GetFolder(objShell.SpecialFolders("MyDocuments"))))
' Recursively tally the size of all files under a folder
' Protect against folders or files that are not accessible
Function FindFiles(objFolder)
On Error Resume Next
' List files
For Each objFile In objFolder.Files
On Error Resume Next
If Err.Number <> 0 Then ShowError "FindFiles:01", objFolder.Path
On Error Resume Next
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If Err.Number <> 0 Then ShowError "FindFiles:02", objFile.Path
Next
If Err.Number = 0 Then
' Recursively drill down into subfolder
For Each objSubFolder In objFolder.SubFolders
On Error Resume Next
If Err.Number <> 0 Then ShowError "FindFiles:04", objFolder.Path
FindFiles = FindFiles + FindFiles(objSubFolder)
If Err.Number <> 0 Then ShowError "FindFiles:05", objSubFolder.Path
Next
Else
ShowError "FindFiles:03", objFolder.Path
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End Function
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aLabel = Array("bytes", "KB", "MB", "GB", "TB")
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WScript.StdErr.WriteLine " " & strMessage
Err.Clear
End If
End Sub
The only part pending, is to achieve this for the 'My Documents' folder within each User Profile folder.
Is this possible?
Please help.

Here are a bunch of scripts to get folder size under all circumstances. Take your pick.
https://gallery.technet.microsoft.com/scriptcenter/site/search?query=get%20folder%20size&f%5B0%5D.Value=get%20folder%20size&f%5B0%5D.Type=SearchText&ac=2
¯\_(ツ)_/¯

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HELP: Run-time array dimension in LabVIEW formula node

I need to dimension an array at run time within a formula node as follows:
int32 i,N;
N = sizeOfDim(inputArray,0);
float64 outputArray[N];
for (i = 0; i outputArray[i] = myfunction(inputArray[i]);
However, LabVIEW complains "Formula Node: index list expected". On the
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LabVIEW is perfectly happy. But that's not what I need to do! Is there
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BTW, I've tried calculating N outside the formula node and then
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Given array control reference, how do I obtain array size programatically

If an array control reference is passed to a sub-vi, how do I obtain the current length of the array within the sub-vi? I've tried two properties: "NumRows", which as documented, contains the visible number of rows in the array control. "IndexVals" contain the indices of the array element in the upper left corner of the array control. There seem to be no methods for obtaining the current array length. I tried changing the class of the array reference to cluster then using the "Controls[]" property... but this generated a runtime error. What am I missing? Thanks.
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Go to Solution.

Taki1999 wrote:
There's a lot of casting going on in your subvi.
What is the actual use case? There might be a way to do this which doesn't require the casting and you could work just with the reference that is passed in.
For your method you need to wire in a strict class specifier into the To More Specific Class conversion. I'm not sure how to make the strict class specifier.
I can help with that but first...
Working with arrays on unknown data types is no esy task and determining the size is a special challenge and I did just that in this Nugget that talks about using control references. This task is much easier when you know at development time what is in the array. That is where the strict type casting comes into play.
What I would do...
1) Make sure the contents of the array is a type def (to support data strcuture changes in the future).
2) Go to the FP of the VI that has the array in question and drop a generic control ref control.
3) Ctrl-copy and drag the array in question INTO the the generic ref (still working on the FP). You can tell when you find the "sweet spot" in the ref control because it will switch it appearence. See this mini-nugget for an image where the same thing can be done with que refs.
4) Make the now strict ref a type def.
5) Use the type-def'd ref from step #4 in the sub-VI as the proptype used by the "To More Specific...."
After those changes you should be able to work with array in the sub-VI as if it were in the top level.
BTW:
Doing the above on the control in the sub-VI that brings in the ref would allow skipping the "To more Specific..."
Have fun!
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

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How to set the array size

Hi,
below is my sample code
class test
int sample[][]=new int[10][10];
int rows=0,k=0;
int columns=0;
public void meth()
rows=9;
columns=9;
}//end of meth()
public meth_2()
for (int i=0;i<rows;i++)
for(int j=0;j<columns;j++)
sample[i][j]=k;
k++;
for (int i=0;i<rows;i++)
for(int j=0;j<columns;j++)
System.out.println(sample[i][j]);
}//end of meth_2()
public int[][] getList()
return sample;
}//end of classNow that my question is, i need to set the size of array sample[][] to sample[rows+1][columns+1].. but to do so, 'rows' and 'columns' values will only be generated upon the execution of method meth() . I need sample[][] array to be declared right after the class begins. The values that are returned from sample[][] array through that getList() method is been used in another class.. So how do i set the size of sample[][] array to
int sample[][] = new int[rows+1][columns+1];Any response is highly appreciable.
Thanks in advance
Edited by: netbeans2eclipse on Sep 14, 2008 1:20 PM

It seems you answered your question yourself ;-)
Just split this:
int sample[][] = new int[rows+1][columns+1];in two parts.
Declaration:
int sample[][];and instantiation in meth() or meth_2():
sample = new int[rows+1][columns+1];

Determining array size

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How do I get an array output on a Formula Node?

My problem is simply that I cannot figure out how to get an output on a Formula Node to be an array. Documentation states that "you must declare local arrays and output arrays in the Formula Node" but doesn't say anything more than than. Attempts to put something like "float32 out[100];" for an array output called "out" fail.
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Array index problem in formula node

dear friend
I'm trying to use formula node to solve a problem because I make this program using c at the begining.
It runs perfectly in turbo c, but somehow it doesn't work in the formula node.
I try to debug my source code, and I find that the formula node seems can't read the true value in
the array.
Here is the code in the formula node.
int32 i,j,k;
for ( i = 0 ; i < sopa; i++ )
j = 1;
ep[i][0] = pa[i];
ep[i][1] = np[ep[i][0]][0];
while ( ep[i][j-1] != exit )
  for ( k = 0 ; k < sonp ; k++ )
    if ( np[ep[i][j-1]][k] != -1 && (pc[ep[i][j-1]][ep[i][j]] + pc[ep[i][j]][exit] >= pc[ep[i][j-1]][np[ep[i][j-1]][k]] + pc[np[ep[i][j-1]][k]][exit] ) && (pc[ep[i][j-1]][np[ep[i][j-1]][k]] == org[ep[i][j-1]][np[ep[i][j-1]][k]] ))
      ep[i][j] = np[ep[i][j-1]][k];
  j++;
This is the part that I think the problem might be.
if ( np[ep[i][j-1]][k] != -1 && (pc[ep[i][j-1]][ep[i][j]] + pc[ep[i][j]][exit] >= pc[ep[i][j-1]][np[ep[i][j-1]][k]] + pc[np[ep[i][j-1]][k]][exit] ) && (pc[ep[i][j-1]][np[ep[i][j-1]][k]] == org[ep[i][j-1]][np[ep[i][j-1]][k]] ))
ep[i][j] = np[ep[i][j-1]][k];
I state that "np[ep[i][j-1]][k] != -1" but I do get the value -1 in the array "ep".
Could someone tell me why I get -1 in the array?
I hope I can finally do it all by labview not using formula node,but array like "pc[ep[i][j-1]][np[ep[i][j-1]][k]] "
seems very hard to wire in labview. Could someone give me some good advices of doing this?
Thanks for your help

altenbach 已寫:
normanshi wrote:
ep[i][0] = pa[i];                                          (A)
ep[i][1] = np[ep[i][0]][0];                            (B)
...    if ( np[ep[i][j-1]][k] != -1 && ... )          (C)
      ep[i][j] = np[ep[i][j-1]][k];                       (D)
I state that "np[ep[i][j-1]][k] != -1" but I do get the value -1 in the array "ep".
Could someone tell me why I get -1 in the array?
I hope I can finally do it all by labview not using formula node,but array like "pc[ep[i][j-1]][np[ep[i][j-1]][k]] "
seems very hard to wire in labview. Could someone give me some good advices of doing this?
There are many possible scenarios to get a -1 in the ep output. For example if the -1 gets already written in step (A) or (B) at a certain index, and that index does not get overwritten in step (D). You are indexing all over the place! Is there some bounds checking on the array contents? What are typical inputs and array sizes?
I'm sure about that the -1 doesn't get already written in step (A) or (B) because ep[i][0] and ep[i][1] is fine. What really makes me confuse is that sometimes ep array has the value like this.
That means it does overwritten some value in step (D). The -1 should never be written into it because I have already state that np[ep[i][j-1]][k] != -1. Somehow I still get -1,and this is really strange! I'm indexing all over the place becuase I can't figure out a better way to achieve my requirement.
I think I should briefly tell you what I'm trying to do. In this program,I input some values which means the distance from one point to another. Then I use floyd's all pairs shortest-path algorithm to find all the shortest distance. Finally I want to find out the "shortest path". I mean like from point 4 to point 0,the shortest path might be like 4 -> 2 -> 1 -> 0, and what the formula node part do is trying to find out this "shortest path". Maybe you can give me some better advice of doing this, I have been thinking a better way to do it for about two months. I think I'm really not good at this.
I try to do it all by labview ,but again I get a strange problem. This time the ep[i][j-1] doesn't get the correct value. In the first time i=0 j-1=0 ep[i][j-1] = 1,but the second time i = 0 j-1 = 1 ep[i][j-1] = 0. This makes the "ep[i][j-1]!=exit" get the incorrect boolean value. The ep[i][j-1] should be 2,not 0. I try to use highlight to find if I make any mistake, but I can't one.This is the input and I put the labview program in attached file (temp4.vi).
Could you help me find out why this happened?
Thanks for your help altenbach!
由 normanshi 在 08-19-2006 10:06 PM 上編輯的訊息
Attachments:
temp4.vi ‏191 KB
ep.jpg ‏10 KB
input.jpg ‏9 KB

How to program a C like pragraming in formula node?

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int x, i ;
float large;
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If you use a Formula Node, you need to do something like this.
int x, i ;
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for(i=1; i<202; i++)
if(a[i]>=large)
large = a[i];
x=i;
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How do I determine array size in a formula node

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